I need to make my View circular on a non solid colored background.
I tried using borderRadius and overflow: 'hidden', but it isn't working. I see that this is a known issue with React Native: https://github.com/facebook/react-native/issues/3198
There seems to be workarounds for images that are on top of a solid background, but my background is dynamic and on top of an image so therefore I can't hardcode it.
Are there any alternatives to get something like this to work?
The black square should be a circle:
Here's the code (P.S. I'm using react native webrtc, that's where I'm getting RTCView, but I think this works with a plain old View):
const styles = StyleSheet.create({
remoteVideoContainer: {
borderRadius: 50,
height: 100,
marginBottom: 20,
width: 100,
overflow: 'hidden',
backgroundColor: 'green',
},
video: {
flex: 1,
resizeMode: 'cover',
backgroundColor: 'blue',
},
});
export default VideoView = ({
videoURL,
}) => {
return (
<View style={styles.remoteVideoContainer}>
<RTCView
style={styles.video}
streamURL={videoURL}
mirror={true}
objectFit="cover"
/>
</View>
);
};
I'm not even sure if you can style the RTCView. The code doesn't expose a styling prop. https://github.com/oney/react-native-webrtc/blob/master/RTCView.js
Related
I'm trying to create an effect in my React Native app whereby a pixelated version of an image grows in height over another image. I'm using react-native-reanimated v2. The issue I'm having is that I can't get the image to animate in height without the image scaling/re-positioning.
To illustrate the effect I'm currently getting, and what I want, see this image:
I've tried different resizeMethod inputs and the closest I've found is repeat however this performs inconsistently over different device sizes. Ideally I'd just want the image to not scale but that's likely just ignorance on my side in terms of understanding the way images are rendered.
Current code:
const AnimatedDemo = () => {
const overlayPicHeight = useSharedValue(0);
useEffect(() => {
overlayPicHeight.value = withTiming(100, {
duration: 5000,
});
}, []);
const animatedHeight = useAnimatedStyle(() => ({
height: `${overlayPicHeight.value}%`,
}));
return (
<View style={styles.container}>
<Animated.Image
source={require("./dog2.jpeg")}
style={[{ width: "100%", height: "100%" }]}
/>
<Animated.Image
source={require("./dog2-pixel.jpeg")}
style={[
{ width: "100%", position: "absolute", zIndex: 1 },
animatedHeight,
]}
/>
</View>
);
};
const styles = StyleSheet.create({
container: {
height: "90%",
alignItems: "center",
},
});
Note - if I can achieve the same kind of effect without needing to use the 2nd , I'm all ears, as this would likely resolve my issue too
I am using react native snap carousel and I am trying to have the preview of the next card look the same height as the current card. Originally the preview is set to look centered but smaller. I would like the preview to look the same exact size.
I tried setting the containerCustomStyle to alignItems center which made it look closer to the result I wanted but the sizes are not the same. If you remove the contrainerCustomStyle you can see an exaggerated version of what I do NOT want.
I have a snack expo recreating my problem here as well as some code below. If I need to add a picture to clarify the result I would like, let me know!
I appreciate any insight at all more than you know.
renderCarouselItem = ({ item }) => {
return <View style={styles.cardContainer}>
<Text style={styles.name}>{item.name}</Text>
</View>;
};
render() {
return (
<Carousel
ref={(c) => {
this._carousel = c;
}}
data={this.state.coordinates}
renderItem={this.renderCarouselItem}
containerCustomStyle={styles.carousel}
sliderWidth={Dimensions.get('window').width}
itemWidth={300}
removeClippedSubviews={false}
/>
);
}
}
const styles = StyleSheet.create({
cardContainer: {
backgroundColor: 'red',
height: 100,
width: 300,
borderRadius: 10,
},
name: {
color: 'black',
fontSize: 22,
},
carousel: {
alignItems: 'center',
}
});
react-native-snap-carousel is deprecated. You should try react-native-reanimated-carousel
Pretty simple question and concept here, I am using the react UI Kitten Framework for a React Native Project, and for the life of me I cannot change the styling on the TabBar's Tab components. I've looked at the documentation, and this is where it had lead me...
<View style={LandingPageStyles.container}>
<View style={LandingPageStyles.tabBarContainer}>
<TabBar
indicatorStyle={{color: '#ffffff !important', borderColor: '#ffffff !important'}}
tabBarStyle={LandingPageStyles.loginTab}
style={LandingPageStyles.tabBar}
selectedIndex={selectedIndex}
onSelect={index => setSelectedIndex(index)}
>
<Tab
title="Login"
tabBarStyle={LandingPageStyles.loginTab}
indicatorStyle={{color: '#ffffff !important', borderColor: '#ffffff !important'}}
tabBarStyle={LandingPageStyles.loginTab}/>
<Tab
title='Sign Up'
tabBarStyle={LandingPageStyles.signUpTab}
indicatorStyle={{color: '#ffffff !important', borderColor: '#ffffff !important'}}
tabBarStyle={LandingPageStyles.loginTab}/>
</TabBar>
</View>
<View>
{determineRender()}
</View>
</View>
And I have the following styleSheets...
const LandingPageStyles = StyleSheet.create({
container: {
width: maxWidth,
height: maxHeight,
},
tabBarContainer: {
marginTop: maxHeight * 0.045,
marginLeft: maxWidth * 0.075,
marginBottom: maxHeight * 0.06,
// borderWidth: 1,
// borderColor: 'black',
// width: maxWidth * 0.85,
},
tabBar: {
backgroundColor: 'rgba(52, 52, 52, 0.3) !important',
},
loginTab: {
borderBottomColor: "white",
color: 'white',
},
signUpTab: {
borderBottomColor: "white",
color: 'white',
}
})
Notice that I'm attempting to style the tabs themselves in anyway possible, adding style tabBarStyle and indicatorStyle anywhere it would be relevant. Unfortunately it does nothing and the text color is still some faded blue/grey instead of white, and the borderBottomColor of the selected tab is just blue. Am I shit out of luck an unable to style Kitten elements or is there something I'm missing?
For Changing certain styles in the react native ui kitten library, you would need to use something known as customize mappings.
You can follow the guide here:
Custom Component Mapping
Customizing mappinghttps://akveo.github.io/react-native-ui-kitten/docs/design-system/customize-mapping#customize-component-mapping
The tabview styles are very limited, your styles are ignored/overridden.
Customize component mapping is very cumbersome, lack of documentation, moreover you can't change the layout.
You have to render the components by yourself to fully control the styling
<TabView indicatorStyle={yourStyle} tabBarStyle={yourStyle}>
<Tab style={yourTabStyle}
/* instead of passing the string, you pass the function to render the title */
title={() => <Text style={yourTitleStyle}>Tab1</Text>}
/* same for icon */
icon={() => <Icon name='star' style={yourIconStyle}/>}
>
</TabView>
In the Card Component for react native elements
I'm trying to get rid of the border by setting the border to 0 and borderColor to transparent but there's still a gray outline
<Card
containerStyle={{borderWidth: 0, borderColor: 'transparent', elevation: 0}}
title='HELLO WORLD'
image={require('../images/pic2.jpg')}>
<Text style={{marginBottom: 10}}>
The idea with React Native Elements is more about component structure than actual design.
</Text>
</Card>
Thought it might have been box shadow, but that's not it either
I've got the same issue, and I've found that border appears because the Card element has an elevation default setted to 1
You can override this (for android) :
<Card containerStyle={{elevation:0, backgroundColor:#123}}/>
and in IOS:
const styles = {
container: {
shadowColor: 'rgba(0,0,0, .2)',
shadowOffset: { height: 0, width: 0 },
shadowOpacity: 0, //default is 1
shadowRadius: 0//default is 1
}
}
<Card containerStyle={styles.container} />
Its late but it seems that a lot of people still searching for the Answer.
React Native Elements by default have set both borderWidth and shadow Props, so in order to remove border completely you need to remove both Border and Shadow.
<Card containerStyle={styles.cardCnt}>
<Text>Content</Text>
</Card>
const styles = {
cardCnt: {
borderWidth: 0, // Remove Border
shadowColor: 'rgba(0,0,0, 0.0)', // Remove Shadow for iOS
shadowOffset: { height: 0, width: 0 },
shadowOpacity: 0,
shadowRadius: 0,
elevation: 0 // Remove Shadow for Android
}
};
It looks like react native elements' Card component has a grey border in all of the examples I've seen. I'd suggest building your own card component. Start with something like this and then style it however you want. This one has a bit of shadow which you can turn off by passing it a noShadow prop.
import React from 'react';
import { View, StyleSheet } from 'react-native';
const Card = (props) => {
let shadowStyle = {
shadowColor: COLORS.grey3,
shadowOffset: { width: 0, height: 0 },
shadowOpacity: .5,
shadowRadius: 12,
elevation: 1,
}
if (props.noShadow) {
shadowStyle = {}
}
return (
<View style={[styles.containerStyle, props.style, shadowStyle]}>
{props.children}
</View>
);
};
const styles = StyleSheet.create({
containerStyle: {
padding: 10,
marginHorizontal: 10,
backgroundColor: COLORS.white,
borderRadius: 3,
}
})
export { Card };
Then when you want to use it just
import { Card } from './yourCustomCardFile'
Then in your render method
<Card>
<Text>Any content you want to include on the card</Text>
<Text>More content that you want on the card</Text>
</Card>
set elevation to 0 and borderColor to white like this
<Card containerStyle={{ elevation: 0, borderColor: "white" }}>
set to screen background color
Dirty but problem solved.
I am trying to create a UI in react native, the UI contains a box with outer shadow. using the image I have done that, but is there any proper way to do that?
You will have to use different style props for iOS and Android.
Android
It's very simple for android, just use the elevation style prop (See docs) . An example:
boxWithShadow: {
elevation: 5
}
iOS
In iOS you have more flexibility, use the Shadow props (See docs). An example:
boxWithShadow: {
shadowColor: '#000',
shadowOffset: { width: 0, height: 1 },
shadowOpacity: 0.8,
shadowRadius: 1,
}
Summary
In summary, to get box shadow for both platforms, use both sets of style props:
boxWithShadow: {
shadowColor: '#000',
shadowOffset: { width: 0, height: 1 },
shadowOpacity: 0.8,
shadowRadius: 2,
elevation: 5
}
Attention: Do not use overflow: 'hidden';, in iOS all of the shadows disappear by this property.
Hey, Look it's Done Now !
const styles = StyleSheet.create({
shadow: {
borderColor:'yourchoice', // if you need
borderWidth:1,
overflow: 'hidden',
shadowColor: 'yourchoice',
shadowRadius: 10,
shadowOpacity: 1,
}
});
Keep in mind the shadow's props are only available for IOS.
You can use library "react-native-shadow-2", works for both android and iOS.
No need to write seperate chunk of code for iOS/android & has typescript support also.
Installation:
First install react-native-svg.
Then install react-native-shadow-2:
npm i react-native-shadow-2
Structure:
import { Shadow } from 'react-native-shadow-2';
<Shadow>
{/* Your component */}
</Shadow>
There are many props such as startColor, finalColor, radius, offset. You can use as per your requirements.
I've found a workaround using a Linear Gradient for a very similar issue. I haven't found anything better anywhere on stack, so I suppose I'll add it here. It's especially nice and easy if you only want top and bottom, or side shadows.
I added a top and bottom inner box shadow to an image with full width and 140 height. You could create multiple gradients to make an outer box shadow. Don't forget about the corners. You can use the start and end props to make angled shadows / gradients, maybe that'll work for corners if you need them.
<ImageBackground
source={imagePicker(this.props.title)}
style={styles.image}
>
<LinearGradient
colors={[
'transparent',
'transparent',
'rgba(0,0,0,0.2)',
'rgba(0,0,0,0.6)'
]}
start={[0,0.9]}
end={[0,1]}
style={styles.image_shadows}
/>
<LinearGradient
colors={[
'rgba(0,0,0,0.6)',
'rgba(0,0,0,0.2)',
'transparent',
'transparent'
]}
start={[0,0]}
end={[0,0.1]}
style={styles.image_cover}
/>
</ImageBackground>
const styles = StyleSheet.create({
image: {
flex: 1,
resizeMode: "stretch",
justifyContent: "center",
paddingTop:90,
paddingLeft:10,
height:140,
flexDirection: 'row',
},
image_shadows: {
position: 'absolute',
left: 0,
right: 0,
top: 0,
height: 140
}
}
If you use expo you can install it with 'expo install expo-linear-gradient' Expo Docs. If not, I believe react-native-linear-gradient is similar React-Native-Linear-Gradient github.